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## Can't seem to get exact measurement on objects after scaling them

Community Beginner ,
Mar 31, 2019

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Dear good people,

I need your help on figure out the issues I've been having in this couple days.

The problem is whenever I scale objects (using transform and type exact % like 200% bigger or smaller), then result of objects measurements comes out weirdly with numbers including decimals. This wouldn't happen when I make rectangle but it happens to the offset rectangles. I'm working in millimeter.

Lets say, I create 10mm x 10mm rectangle, then I offset the rectangle path inward using path offset under object,  type in -1mm to make 8mm x 8mm box within 10mm x 10mm box.

Then I go to transform and type in 500% so result should be

Outer Box = 50mm x 50mm

Inner Box = 40mm x 40mm

Outer Box = 50mm x 50mm

Inner Box = 40mm x 40.001mm

I just find out as ling as I make 8mm x 8mm box instead of offsetting -1mm from 10mm x 10mm rectangle then It works fine no matter how much I scale using transform.

Another thing is that this occurs to any object I have getting weird decimal measurements after scale up or down.

Do you have any idea to resolve this issues?

Please find attached image below, and thank you in advance.

P.S.

I have been researching and turn things off like align to pixel or snap to grid and so on....

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## Can't seem to get exact measurement on objects after scaling them

Community Beginner ,
Mar 31, 2019

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Dear good people,

I need your help on figure out the issues I've been having in this couple days.

The problem is whenever I scale objects (using transform and type exact % like 200% bigger or smaller), then result of objects measurements comes out weirdly with numbers including decimals. This wouldn't happen when I make rectangle but it happens to the offset rectangles. I'm working in millimeter.

Lets say, I create 10mm x 10mm rectangle, then I offset the rectangle path inward using path offset under object,  type in -1mm to make 8mm x 8mm box within 10mm x 10mm box.

Then I go to transform and type in 500% so result should be

Outer Box = 50mm x 50mm

Inner Box = 40mm x 40mm

Outer Box = 50mm x 50mm

Inner Box = 40mm x 40.001mm

I just find out as ling as I make 8mm x 8mm box instead of offsetting -1mm from 10mm x 10mm rectangle then It works fine no matter how much I scale using transform.

Another thing is that this occurs to any object I have getting weird decimal measurements after scale up or down.

Do you have any idea to resolve this issues?

Please find attached image below, and thank you in advance.

P.S.

I have been researching and turn things off like align to pixel or snap to grid and so on....

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657

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Mar 31, 2019 1
10 Replies 10
Adobe Community Professional ,
Apr 01, 2019

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Hi,

I am sure there is a very technical answer to this. I always put it down to one of those 'computer things that happen' and never really questioned it.

I never found a preference that would allow the 'rounding' of values to avoid decimals or at least put some control on it.

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Apr 01, 2019 1
Community Beginner ,
Apr 01, 2019

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Hi Eric Dumas,

Yes, I have been searching and searching if there are any ways to turn decimals off option but don't find any.

Like you said, computer things that happen, I should just let go......

Thank you

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Apr 01, 2019 0
Adobe Community Professional ,
Apr 01, 2019

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It is something you can add to bug/suggestion forum to add a rounding up preference

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Apr 01, 2019 1
Adobe Community Professional ,
Apr 01, 2019

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I can't tell you definitively, but every dimension in Illustrator, whatever your unit preferences, is converted from thousandths of a point. So there are always slight discrepancies when using units like millimetres. Usually, they're too small to be represented in three decimal places.

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Apr 01, 2019 1
Community Beginner ,
Apr 01, 2019

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Hi Doug A Roberts,

I agreed, but it happens only to Millimeter so far that I found.

Other unit works very fine.

Thank you,

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Apr 01, 2019 0
Most Valuable Participant ,
Apr 01, 2019

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Yes, won't happen with points. It is inevitable with metric numbers. Just try to work out the effect of 0.001 mm on your design, then forget it...

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Apr 01, 2019 1
Adobe Community Professional ,
Apr 01, 2019

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You're right, I did some tests myself. It does seem inexplicable.

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Apr 01, 2019 1
Adobe Community Professional ,
Apr 01, 2019

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Hi,

This weird decimal measurement may happen because of the Align to pixel grid technique.
Can you tell us more about your Snap option from View menu ?!

and from here:

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Apr 01, 2019 1
Community Beginner ,
Apr 01, 2019

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Hi Omar.Fathy

I turned every snapping tools off as well as Align to pixel grid.

Weird thing is this problem only happy in Millimeter so far. I tried in inches and point then it works fine.

Thank you,

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Apr 01, 2019 0
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Explorer ,
Jul 19, 2020

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I have this exact same problem in points and picas. I cannot get Illustator to follow my precise transform specifications. I want my ellipse to be 5p8 but Illustrator makes it 5p8.004. I have all the snaps, pixel grid alignment, and smart guides turned off. When I nudge it with the arrow keys, with the preference set to 0p1 increments, I get 0p0.9996 increments. WTF Adobe? This didn't use to happen and I could trust that Illustrator always displayed the measurements I input. Now, with more recent releases of the software, this bug persists.

Transform panel not precise.

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Jul 19, 2020 0
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